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authorBin Meng <bmeng.cn@gmail.com>2017-04-21 14:24:32 (GMT)
committerBin Meng <bmeng.cn@gmail.com>2017-05-17 09:11:46 (GMT)
commitb727961b0706df57d408fe609cfe098a91626da3 (patch)
tree58950cda536d31379e6cb28486617ea71d18914e /arch/x86/cpu/cpu.c
parent1206723b6e597f1aa946b800fc59059db91908bc (diff)
downloadu-boot-fsl-qoriq-b727961b0706df57d408fe609cfe098a91626da3.tar.xz
x86: Store and display previous sleep state
Add one member in the global data to store previous sleep state, and display the state during boot in print_cpuinfo(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'arch/x86/cpu/cpu.c')
-rw-r--r--arch/x86/cpu/cpu.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c
index 8fa6953..7222ec8 100644
--- a/arch/x86/cpu/cpu.c
+++ b/arch/x86/cpu/cpu.c
@@ -25,6 +25,7 @@
#include <errno.h>
#include <malloc.h>
#include <syscon.h>
+#include <asm/acpi_s3.h>
#include <asm/control_regs.h>
#include <asm/coreboot_tables.h>
#include <asm/cpu.h>
@@ -179,6 +180,11 @@ int default_print_cpuinfo(void)
cpu_has_64bit() ? "x86_64" : "x86",
cpu_vendor_name(gd->arch.x86_vendor), gd->arch.x86_device);
+#ifdef CONFIG_HAVE_ACPI_RESUME
+ debug("ACPI previous sleep state: %s\n",
+ acpi_ss_string(gd->arch.prev_sleep_state));
+#endif
+
return 0;
}